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Updated: Aug 30, 2026

The Measurement and Treatment of Suppression in Amblyopia
08:34

The Measurement and Treatment of Suppression in Amblyopia

Published on: December 14, 2012

A randomized trial of prescribed patching regimens for treatment of severe amblyopia in children

Jonathan M Holmes, Raymond T Kraker, Roy W Beck

    Ophthalmology
    |November 5, 2003
    PubMed

    Insights

    For severe amblyopia in young children, patching for 6 hours daily offers similar visual acuity improvements as full-time patching. This finding supports less intensive treatment options for amblyopia management.

    Area of Science:

    • Ophthalmology
    • Pediatric Medicine
    • Clinical Research

    Background:

    • Amblyopia, or "lazy eye," is a common cause of reduced vision in children.
    • Current treatments for severe amblyopia often involve patching the stronger eye to encourage development of the weaker eye.

    Purpose of the Study:

    • To compare the effectiveness of full-time patching versus 6 hours of daily patching for treating severe amblyopia in children under 7 years old.

    Main Methods:

    • A prospective, randomized multicenter clinical trial involving 175 children younger than 7 years with severe amblyopia (20/100 to 20/400).
    • Participants were randomized to either full-time patching or 6 hours of patching daily, with both groups incorporating near-visual activities during patching.
    • Visual acuity in the amblyopic eye was assessed after 4 months as the primary outcome measure.

    Main Results:

    • Both treatment groups demonstrated similar improvements in visual acuity in the amblyopic eye.
    • The average improvement was 4.8 lines in the 6-hour patching group and 4.7 lines in the full-time patching group (P = 0.45).

    Conclusions:

    • Prescribed daily patching for 6 hours yields visual acuity improvements comparable to full-time patching for severe amblyopia in children aged 3 to under 7 years.
    • This suggests that a shorter patching duration may be a viable and effective treatment option.
    Abstract

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